It's pretty general that an unclosed multisession disc, be it cd or dvd, may not be readable with other drives or other systems before it's closed. That's what closing the disc means - it's written "finished" so that it's usable on many systems. In addition at least the man page of growisofs tells you this:
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Originally Posted by man growisofs
Even though growisofs supports it, playback of multisession write-once DVD might be limited to the first session for two reasons:
* not all DVD-ROM players are capable of multi-border DVD-R playback, even less are aware of DVD+R multisessioning, burner unit therefore might be the only one in your vicinity capable of accessing files written at different occasions;
* OS might fail to mount multisession DVD for various reasons;
The above is not applicable to DVD+RW, DVD-RW Restricted Overwrite, DVD-RAM or Blu-ray Disc as volumes are grown within a single session.
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Shortly said, close the disc before taking it anywhere from the place where it was created. If you need to be able to write just a little at a time and carry the media around, consider using flash memory keys or external harddisks.
multisession DVD : is there a solution?
